Hand-power press.



Nu. 676L368. Patentad Nov. 6, I900. E. n. COLLINS.

HAND POWER PRESS.

(Application filed Mar. 6, 1900.) (No Model.) 2 Sheets-Sheet l.

WITNESSES: f "wanna n Md 1% W BY , I ATTORNEY mi "cams rzrsus coq'mmmnuou WASNINGTON. n. c

No. fifilfififi. Patented Nov. 6, I900.

. E. R. COLLINS.

HAND POWER PRESS.

(Application filed Mm. 6, 1900.) (No Wll Bl-J 2 Sheets-Sheet 2.

WITNESSES: INVENTOR- I ATTORNEY Unitarian Smarts ATENT Urrrcn.

EDMUND R. COLLINS, OF NEW YORK, N. Y., ASSIGNOR TO ABEDNEGO DEVVES, OF SAME PLACE.

HAND-POWER PRESS.

SPECIFICATION formingpart of Letters Patent N 0. 661,368, dated November 6, 1900.

Application filed March 6, 1900.

To m/IZ whom it may concern.-

Be it known that I, EDMUND R. CoLLINs, a citizen of the United States, and a resident of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Hand-Power Presses, of which the following is a specification.

This invention relates to hand power presses; and it consists, mainly, in an improved crank-power-transmitting device having an outboard-bearing for the crank-pin and also having a socket for the operatinghandle formed on the outboard part of the crank which is so formed in the opening in which the end of the connecting-rod is placed as to act in conjunction with the connectingrod as a stop to limit the movement of the opcrating-handle, the crank-head and accompanying parts being preferably cast or formed integral.

In the accompanying drawings, forming part of this specification, Figure l is a front elevation of ahand-power press embodying my improvement. Fig. 2 is a side elevation of the same. Fig. 3 is a front view of the crank enlarged, and Fig. 4 is a sectional view of the improved crank-power-transmitting device.

My improved power-transmitting device is applicable to most styles of hand-powenoperated presses, the press shown on the drawings being of that class having a stationary bed ct, upon which the work or material to be operated upon is placed, and avertically-reciproc-atin g platen I), held and controlled by vertiealguide-rods e c, which are fitted to slide in guide-bearings formed on the legs or frames (Z (Z, arranged to support the bed a at its ends.

In bearings formed in the legs d d is fitted the shaft 6, located longitudinally beneath the bed a, and connecting-rods ff are pivotally connected to the ends of the platen b, so as to aline with the shaft 6. The rods ff are provided with turnbuckles g g, by means of which their lengths may be varied and the platen I) adjusted relatively to the bed a as desired.

On each end of the shaft e is firmly secured a crank-head it, formed, as shown, with an outer side piece 6, between which and the Serial No. 7,514:- (No model.)

head 71 is located the lower end of one of the connecting rods. A crank pin j passes through the outer piece *6, the end of the rod f, and into the head 7b, the piece 1' thus forming an outboard-bearing for the crank-pin and counteracting excessive lateral strains on the crank-pin under heavy pressures of op eration. The part 75, connecting the main part of the head h and outboard-bearing 1', acts as a stop to prevent the crank-pin passing beyond its lower center by contacting with the side of the rod f, which limitation of movement also determines the lowest position in which the handle m can be set. This handle m is fitted in the socket Z, arranged on the side of the outer side piece 1' of the crank, as shown, at one side of the press. Both cranks may be provided with such handie-sockets, so that the operating-handle may, as desired, be placed at either end of the press.

By this construction of crank, all the parts h, 2', and 76 of which it is proposed to make integral, a strong, powerful, and cheap power- .transmitting device is produced, the power being supplied to the work as the crank-pins are moved down toward their lowest centers and the greatest power applied as the operating-handle is being moved into its lower most position, and the application of the device to the style of press shown constitutes as a whole a neat and powerful machine adapted for pressing and cutting operations.

I claim as my invention 1. In combination with the bed, platen, shaft and platen-connecting rods and crankpins of a press, of a crank device comprising a head adapted to be secured to the end of the shaft,and ontboard bearing for the crankpin which connects the end of a connectingrod to the crank device, and a connectingpiece joining the head and the outboardbearing and acting as a stop in conjunction with the connecting-rod.

2. In combination with the bed, platen shaft and platen-connecting rods and crankpins of a press, of a crank device comprising a head adapted to be secured to the end of the shaft, and outboard-bearing for the crankpin which connects the end of a connecting rod to the crank device, a connecting-piece tacts with the connecting-rod to limit the joining the head and the outhoafd-bearing movement of the crank.

and acting a stop in conjunction with the Signed at New York, in the county of New connecting-rod, and a handle-socket extend- York and State of New York, this 23d day of 5 ing from the side of the crank and forminga February, A. D. 1900.

part of the outboard-bearing.

3. In combination, the connecting-rod of a EDMUND COLLINS press, and a crank having an outboard-bear- \Vitnesses: ing for the crank-pin which connects the rod ARTHUR G. BLATZ,

10 to the crank, and a stop-piece, which con- GEORGE A. GUMBS. 

